1. The problem statement, all variables and given/known data A 20 m length of chain weighing 2.0 N/m is hung vertically from one end on a hook. Answer in Newtons 1.What is the tension three quarters of the way up? 2.What is the tension 1 m from the top? 3.What is the tension 1 m from the bottom? 2. Relevant equations F = ma w = mg 3. The attempt at a solution Base on my imagine, it has 2 forces total. One is the weight of the chain which is mg (going down); and another one is Newton's law (going up) which is F = ma. But I look at the problem, it given mg = 2 N/m => m = 2 / 9.8 = 0.2 (what's units here??) I'm confused. Moreover, they give the length of the chain which is 20m. What can I do with it? The length??? I really dont know how to start!!!!